Bottle cap



FIG. 1 is a perspective view of our new design for a bottle cap;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the drawings are included for the purpose of illustrating portions of the bottle cap that form no part of the claimed design. 

CLAIM The ornamental design for a bottle cap, as shown and described. 